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相关论文: Model-Agnostic Meta Learning for Class Imbalance A…

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In most real-world scenarios, labeled training datasets are highly class-imbalanced, where deep neural networks suffer from generalizing to a balanced testing criterion. In this paper, we explore a novel yet simple way to alleviate this…

计算机视觉与模式识别 · 计算机科学 2020-12-22 Jaehyung Kim , Jongheon Jeong , Jinwoo Shin

Adversarial training (AT) is widely considered the state-of-the-art technique for improving the robustness of deep neural networks (DNNs) against adversarial examples (AE). Nevertheless, recent studies have revealed that adversarially…

机器学习 · 计算机科学 2023-08-04 Chenhao Lin , Xiang Ji , Yulong Yang , Qian Li , Chao Shen , Run Wang , Liming Fang

Meta-learning is a general approach to equip machine learning models with the ability to handle few-shot scenarios when dealing with many tasks. Most existing meta-learning methods work based on the assumption that all tasks are of equal…

机器学习 · 计算机科学 2024-10-25 Zhaofeng Si , Shu Hu , Kaiyi Ji , Siwei Lyu

To address the modality imbalance caused by data heterogeneity, existing multi-modal learning (MML) approaches primarily focus on balancing this difference from the perspective of optimization objectives. However, almost all existing…

机器学习 · 计算机科学 2025-01-06 Zhi-Hao Guan

Deep neural networks are highly effective when a large number of labeled samples are available but fail with few-shot classification tasks. Recently, meta-learning methods have received much attention, which train a meta-learner on massive…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Yucan Zhou , Yu Wang , Jianfei Cai , Yu Zhou , Qinghua Hu , Weiping Wang

Deep learning has proven to be an effective approach in the field of Human activity recognition (HAR), outperforming other architectures that require manual feature engineering. Despite recent advancements, challenges inherent to HAR data,…

机器学习 · 计算机科学 2023-07-18 Yiran Huang , Yexu Zhou , Till Riedel , Likun Fang , Michael Beigl

In this paper, we propose a learning algorithm that enables a model to quickly exploit commonalities among related tasks from an unseen task distribution, before quickly adapting to specific tasks from that same distribution. We investigate…

机器学习 · 计算机科学 2021-07-21 Arnout Devos , Yatin Dandi

In order to efficiently learn with small amount of data on new tasks, meta-learning transfers knowledge learned from previous tasks to the new ones. However, a critical challenge in meta-learning is the task heterogeneity which cannot be…

机器学习 · 计算机科学 2020-01-06 Huaxiu Yao , Xian Wu , Zhiqiang Tao , Yaliang Li , Bolin Ding , Ruirui Li , Zhenhui Li

Machine learning models are trained to minimize the mean loss for a single metric, and thus typically do not consider fairness and robustness. Neglecting such metrics in training can make these models prone to fairness violations when…

机器学习 · 计算机科学 2022-07-21 Bobby Yan , Skyler Seto , Nicholas Apostoloff

Existing gradient-based meta-learning approaches to few-shot learning assume that all tasks have the same input feature space. However, in the real world scenarios, there are many cases that the input structures of tasks can be different,…

人工智能 · 计算机科学 2021-09-29 Jiayi Chen , Aidong Zhang

This paper presents a novel optimization method for maximizing generalization over tasks in meta-learning. The goal of meta-learning is to learn a model for an agent adapting rapidly when presented with previously unseen tasks. Tasks are…

机器学习 · 计算机科学 2018-10-19 Amir Erfan Eshratifar , David Eigen , Massoud Pedram

In past years model-agnostic meta-learning (MAML) has been one of the most promising approaches in meta-learning. It can be applied to different kinds of problems, e.g., reinforcement learning, but also shows good results on few-shot…

机器学习 · 计算机科学 2021-05-13 Thomas Goerttler , Klaus Obermayer

Meta-learning methods have shown an impressive ability to train models that rapidly learn new tasks. However, these methods only aim to perform well in expectation over tasks coming from some particular distribution that is typically…

机器学习 · 计算机科学 2020-06-22 Liam Collins , Aryan Mokhtari , Sanjay Shakkottai

Class-imbalance is a common problem in machine learning practice. Typical Imbalanced Learning (IL) methods balance the data via intuitive class-wise resampling or reweighting. However, previous studies suggest that beyond class-imbalance,…

机器学习 · 计算机科学 2022-11-24 Zhining Liu , Pengfei Wei , Zhepei Wei , Boyang Yu , Jing Jiang , Wei Cao , Jiang Bian , Yi Chang

Class imbalance is a common challenge in many NLP tasks, and has clear connections to bias, in that bias in training data often leads to higher accuracy for majority groups at the expense of minority groups. However there has traditionally…

计算与语言 · 计算机科学 2021-09-23 Shivashankar Subramanian , Afshin Rahimi , Timothy Baldwin , Trevor Cohn , Lea Frermann

Large-scale pre-trained Vision-Language Models (VLMs) have exhibited impressive zero-shot performance and transferability, allowing them to adapt to downstream tasks in a data-efficient manner. However, when only a few labeled samples are…

计算机视觉与模式识别 · 计算机科学 2024-11-11 Ce Zhang , Simon Stepputtis , Katia Sycara , Yaqi Xie

Deep learning models suffer from catastrophic forgetting when learning new tasks incrementally. Incremental learning has been proposed to retain the knowledge of old classes while learning to identify new classes. A typical approach is to…

计算机视觉与模式识别 · 计算机科学 2022-07-14 Huitong Chen , Yu Wang , Qinghua Hu

Due to the inherent imbalance in real-world datasets, na\"ive Empirical Risk Minimization (ERM) tends to bias the learning process towards the majority classes, hindering generalization to minority classes. To rebalance the learning…

机器学习 · 计算机科学 2025-12-09 Zitai Wang , Qianqian Xu , Zhiyong Yang , Zhikang Xu , Linchao Zhang , Xiaochun Cao , Qingming Huang

Multi-Domain Recommendation (MDR) has gained significant attention in recent years, which leverages data from multiple domains to enhance their performance concurrently.However, current MDR models are confronted with two limitations.…

信息检索 · 计算机科学 2025-10-14 Xiaopeng Li , Fan Yan , Xiangyu Zhao , Yichao Wang , Bo Chen , Huifeng Guo , Ruiming Tang

Class imbalance remains a major challenge in machine learning, especially in multi-class problems with long-tailed distributions. Existing methods, such as data resampling, cost-sensitive techniques, and logistic loss modifications, though…

机器学习 · 计算机科学 2025-12-30 Corinna Cortes , Anqi Mao , Mehryar Mohri , Yutao Zhong